<script>
// ========================
// 分类管理页面逻辑（详细注释）
// ========================
export default {
    name: "GoodstypeManage",
    data() {
        return {
            // 表格数据
            tableData: [],
            // 分页相关
            pageSize: 10, // 每页条数
            pageNum: 1,   // 当前页码
            total: 0,     // 总条数
            // 查询条件
            name: '',     // 分类名
            // 弹窗控制
            centerDialogVisible: false, // 维护弹窗
            // 表单数据
            form: {
                id: '',
                name: '',
                remark: ''
            },
            // 表单校验规则
            rules: {
                name: [
                    { required: true, message: '请输入分类名', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        // 重置表单内容
        resetForm() {
            this.$refs.form.resetFields();
        },
        // 删除分类，调用后端接口，成功后刷新列表
        del(id) {
            console.log(id)
            this.$axios.get(this.$httpUrl + '/goodstype/del?id=' + id).then(res => res.data).then(res => {
                console.log(res)
                if (res.code == 200) {
                    this.$message({
                        message: '操作成功！',
                        type: 'success'
                    });
                    this.loadPost()
                } else {
                    this.$message({
                        message: '操作失败！',
                        type: 'error'
                    });
                }
            })
        },
        // 编辑分类，弹窗并填充表单
        mod(row) {
            this.centerDialogVisible = true
            this.$nextTick(() => {
                // 赋值到表单
                this.form.id = row.id
                this.form.name = row.name
                this.form.remark = row.remark
            })
        },
        // 新增分类，弹窗并重置表单
        add() {
            this.centerDialogVisible = true
            this.$nextTick(() => {
                this.resetForm()
            })
        },
        // 新增保存，调用后端接口
        doSave() {
            this.$axios.post(this.$httpUrl + '/goodstype/save', this.form).then(res => res.data).then(res => {
                console.log(res)
                if (res.code == 200) {
                    this.$message({
                        message: '操作成功！',
                        type: 'success'
                    });
                    this.centerDialogVisible = false
                    this.loadPost()
                    this.resetForm()
                } else {
                    this.$message({
                        message: '操作失败！',
                        type: 'error'
                    });
                }
            })
        },
        // 编辑保存，调用后端接口
        doMod() {
            this.$axios.post(this.$httpUrl + '/goodstype/update', this.form).then(res => res.data).then(res => {
                console.log(res)
                if (res.code == 200) {
                    this.$message({
                        message: '操作成功！',
                        type: 'success'
                    });
                    this.centerDialogVisible = false
                    this.loadPost()
                    this.resetForm()
                } else {
                    this.$message({
                        message: '操作失败！',
                        type: 'error'
                    });
                }
            })
        },
        // 表单提交，区分新增/编辑
        save() {
            this.$refs.form.validate((valid) => {
                if (valid) {
                    if (this.form.id) {
                        this.doMod();
                    } else {
                        this.doSave();
                    }
                } else {
                    console.log('error submit!!');
                    return false;
                }
            });
        },
        // 分页：每页条数变化
        handleSizeChange(val) {
            console.log(`每页 ${val} 条`);
            this.pageNum = 1
            this.pageSize = val
            this.loadPost()
        },
        // 分页：页码变化
        handleCurrentChange(val) {
            console.log(`当前页: ${val}`);
            this.pageNum = val
            this.loadPost()
        },
        // 重置查询参数
        resetParam() {
            this.name = ''
        },
        // 查询分类列表，带分页和条件
        loadPost() {
            this.$axios.post(this.$httpUrl + '/goodstype/listPage', {
                pageSize: this.pageSize,
                pageNum: this.pageNum,
                param: {
                    name: this.name
                }
            }).then(res => res.data).then(res => {
                console.log(res)
                if (res.code == 200) {
                    this.tableData = res.data
                    this.total = res.total
                } else {
                    alert('获取数据失败')
                }
            })
        }
    },
    // 生命周期钩子：页面加载时初始化分类列表
    beforeMount() {
        this.loadPost()
    }
}
</script>


<template>
    <div>
        <div style="margin-bottom: 5px;">
            <el-input v-model="name" placeholder="请输入分类名" suffix-icon="el-icon-search" style="width: 200px;"
                @keyup.enter.native="loadPost"></el-input>
            <el-button type="primary" style="margin-left: 5px;" @click="loadPost">查询</el-button>
            <el-button type="success" @click="resetParam">重置</el-button>

            <el-button type="primary" style="margin-left: 5px;" @click="add">新增</el-button>
        </div>
        <el-table :data="tableData" :header-cell-style="{ background: '#f2f5fc', color: '#555555' }" border>
            <el-table-column prop="id" label="ID" width="60">
            </el-table-column>
            <el-table-column prop="name" label="分类名" width="180">
            </el-table-column>
            <el-table-column prop="remark" label="备注">
            </el-table-column>
            <el-table-column prop="operate" label="操作">
                <template slot-scope="scope">
                    <el-button size="small" type="success" @click="mod(scope.row)">编辑</el-button>
                    <el-popconfirm title="确定删除吗？" @confirm="del(scope.row.id)" style="margin-left: 5px;">
                        <el-button slot="reference" size="small" type="danger">删除</el-button>
                    </el-popconfirm>
                </template>
            </el-table-column>
        </el-table>
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="pageNum"
            :page-sizes="[5, 10, 20, 30]" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper"
            :total="total">
        </el-pagination>

        <el-dialog title="提示" :visible.sync="centerDialogVisible" width="30%" center>

            <el-form ref="form" :rules="rules" :model="form" label-width="80px">
                <el-form-item label="分类名" prop="name">
                    <el-col :span="20">
                        <el-input v-model="form.name"></el-input>
                    </el-col>
                </el-form-item>
                <el-form-item label="备注" prop="remark">
                    <el-col :span="20">
                        <el-input type="textarea" v-model="form.remark"></el-input>
                    </el-col>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="centerDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="save">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>



<style scoped></style>